NOW TO A BIZARRE MURDER CASE IN McCLOUD. POLICE JUST MADE AN ARREST. WE WERE THERE AS OFFICERS BROUGHT 33-YEAR-OLD BRAD DAVIS INTO JAIL. HE'S ACCUSED OF KILLING HIS STEPFATHER. NEW AT TEN. KOCO'S MICHAEL SEIDEN DESCRIBES THE STRANGE WAY, THE VICTIM DIED. TONIGHT INVESTIGATORS SAY THE SUSPECT IN THIS JAIL IS A MARINE WHO IS NOW FACING A FIRST DEGREE MURDER CHARGE. WE ALSO LEARNING THAT POLICE DIDN'T FIND A GUN OR A KNIFE AT THE CRIME SCENE, INSTEAD THEY BELIEVE THE SUSPECT USED HIS VICTIM'S UNDERWEAR TO SUFFOCATE HIM. Clip 2 Perp walk 205-12 "Brad , is there anything you want to say about you stepfather's death? We understand there was a fight. Why were you guys fighting ?" SHOWING NO EMOTION, 33-YEAR-OLD BRAD DAVIS WALKED INTO JAIL TUESDAY NIGHT REFUSING TO SHARE ANY DETAILS ABOUT THE LAST MOMENTS OF HIS STEPFATHER'S LIFE. Clip 3 Sheriff mike booth/Pott. Co 350-56 "We continued our investigation and uncovered evidence that led us to believe that this was more than just a fight." THE DEADLY FIGHT HAPPENED JUST FOUR DAYS BEFORE CHRISTMAS. INVESTIGATORS SAY BOTH MEN WERE DRINKING TOGETHER INSIDE THE FAMILY HOME NEAR MCLOUD WHEN TEMPERS BEGAN TO FLARE ACCORDING TO AN AFFIDAVIT, THE STEPFATHER BEGAN "SPEAKING ILL OF DAVIS' MOTHER." DAVIS CLAIMS HIS STEPFATHER "SWUNG FIRST" THEN DAVIS FOUGHT BACK TELLING POLICE HE KNOCKED OUT HIS STEPFATHER BEFORE GIVING HIS STEPFATHER A QUOTE "ATOMIC WEDGIE" THE MEDICAL EXAMINER BELIEVES HIS STEP FATHER DIED AS A RESULT OF "ASPHYXIATION CAUSED BY THE ELASTIC UNDERWEAR BAND BEING STRETCHED OVER HIS HEAD AND LEFT AROUND HIS NECK.".. AND BLUNT FORCED TRAUMA. After the fight , Brad Davis called 911 Reporting what had happened But tonight investigators believe he altered the crime scene Trying to make it look like he killed his step father in self defense Reporting in Pott co Michael Seiden Koco 5 news INVESTIGATORS SAY BEFORE THE FIGHT, BRAD DAVIS CALLED A FRIEND AND TOLD HIM HE WAS GOING TO HURT HIS STEP-FATHER, BECAUSE HE HAD NOTHING TO LOSE.